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Finding the Fourth Proportional to 297,428.64, 445,601.67 and 265,542.18

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Solution

The fourth proportional to 297,428.64, 445,601.67 and 265,542.18 is: 397,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,428.64 : 445,601.67 = 265,542.18 : x
  2. Step 2: Convert to fraction form
    297,428.64/445,601.67 = 265,542.18/x
  3. Step 3: Cross multiply
    297,428.64x = 445,601.67 × 265,542.18
  4. Step 4: Simplify right side
    297,428.64x = 118,326,037,096.95
  5. Step 5: Solve for x
    x = 118,326,037,096.95/297,428.64
  6. Step 6: Final answer
    x = 397,830.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.